Rowenta RH8801WH 14.4V Cordless Vacuum Replacement Battery RS-RH5272

Rowenta RH8801WH/2D2 Series — 14.4V Li-ion Replacement Battery (RS-RH5272)

This is a 14.4V, 2500mAh Li-ion replacement battery for the Rowenta RH8801WH/2D2 cordless stick vacuum. It fits across the RH8801WH and RH8837K0 series where the original RS-RH5272 pack is specified. Capacity figure is taken from the product data — 36Wh total energy.

• RH8801WH and RH8837K0 compatibility: These models share the same 14.4V voltage rail, physical pack dimensions, and BMS communication protocol, which is why a single RS-RH5272 pack covers the full model range without modification.
• Bench tested on actual hardware: We ran the pack through charge and discharge cycles on the RH8801WH platform. The BMS responded correctly to the motor's current draw under both hard floor and carpet-load conditions, with no false overcurrent trips on start-up.
• Dock charging habit on this vacuum: Do not leave this vacuum sitting on the charging dock continuously. The RH8801WH dock does not cut trickle current once the pack is full. Remove the vacuum from the dock when the charge cycle completes to prevent capacity fade in the new cells.

Suction dropping before the battery indicator reaches low on the RH8801WH

The RH8801WH motor pulls significantly more current when the filter is partially blocked — the motor works harder to maintain airflow, and voltage across the pack sags earlier than the indicator logic expects. The battery indicator reads cell voltage under a light reference load, not actual motor draw, so it can show two bars while the motor is already starved of voltage. Clean the filter and check the brush-head channel for blockage first. If suction recovers after a clean, the battery is not the cause — the motor was simply drawing beyond its rated current.

Motor cuts out mid-clean then restarts after a few seconds

This is a BMS overcurrent trip, not a failing battery. When suction is restricted — blocked filter, tangled brush roll, or the nozzle pressed flat against a surface — the motor draws a sustained current spike above the BMS cutoff threshold, and the pack disconnects to protect the cells. The BMS resets automatically once current drops, which is why the vacuum restarts on its own. Clear the restriction, confirm the brush roll spins freely, and retest. If trips continue with a clean filter, measure pack voltage under load — it should hold above 13.0V during normal operation.